1
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Lin Z, Fu H, Zhang Y, Deng Y, Wei F, Li H, Xu C, Hua F, Lin B. Enhanced antibacterial effect and biodegradation of coating via dual-in-situ growth based on carboxymethyl cellulose. Carbohydr Polym 2023; 302:120433. [PMID: 36604093 DOI: 10.1016/j.carbpol.2022.120433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/17/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022]
Abstract
The lack of antimicrobial effect of commercial paper coating for food packaging makes it difficult to prevent food spoilage and harms the environment by non-biodegradation. Herein, carboxymethyl cellulose (CMC) provides negatively charged sites for anchoring Ag+ and Zn2+ to grow AgNPs and ZIF-8 in situ on its molecular chains. The ZIF-8/AgNPs@CMC paper coating has excellent synergistic antibacterial activity to prolong the shelf-life of food. It not only has good thermal stability but binds closely to the paper and its adhesion force reaches 628.9 nN. Besides, the ZIF-8/AgNPs@CMC coated paper has better mechanical properties, water vapor barrier, and resists water solubility. Interestingly, due to the confinement effect of ZIF-8, the cumulative release of AgNPs after 168 h is only 2.66 % to avoid possible food safety risks. Especially, the coating can be almost biodegraded in the soil after 30 days, which provides the possibility to replace the non-biodegradable coatings in food packaging.
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Affiliation(s)
- Zhenhao Lin
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Hao Fu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Yuancheng Zhang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Yongfu Deng
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Fuxiang Wei
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Hao Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Chuanhui Xu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Fuli Hua
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
| | - Baofeng Lin
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China.
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2
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Liu F, Liu X, Chen F, Fu Q. Mussel-inspired chemistry: A promising strategy for natural polysaccharides in biomedical applications. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101472] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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3
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Smolyaninov IV, Fukin GK, Berberova NT, Poddel’sky AI. Triphenylantimony(V) Catecholates of the Type (3-RS-4,6-DBCat)SbPh 3-Catechol Thioether Derivatives: Structure, Electrochemical Properties, and Antiradical Activity. Molecules 2021; 26:2171. [PMID: 33918799 PMCID: PMC8069174 DOI: 10.3390/molecules26082171] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 11/16/2022] Open
Abstract
A new series of triphenylantimony(V) 3-alkylthio/arylthio-substituted 4,6-di-tert-butylcatecholates of the type (3-RS-4,6-DBCat)SbPh3, where R = n-butyl (1), n-hexyl (2), n-octyl (3), cyclopentyl (4), cyclohexyl (5), benzyl (6), phenyl (7), and naphthyl-2 (8), were synthesized from the corresponding catechol thioethers and Ph3SbBr2 in the presence of a base. The crystal structures of 1, 2, 3, and 5 were determined by single-crystal X-ray analysis. The coordination polyhedron of 1-3 is better described as a tetragonal pyramid with a different degree of distortion, while that for 5- was a distorted trigonal bipyramid (τ = 0.014, 0.177, 0.26, 0.56, respectively). Complexes demonstrated different crystal packing of molecules. The electrochemical oxidation of the complexes involved the catecholate group as well as the thioether linker. The introduction of a thioether fragment into the aromatic ring of catechol ligand led to a shift in the potential of the "catechol/o-semiquinone" redox transition to the anodic region, which indicated the electron-withdrawing nature of the RS group. The radical scavenging activity of the complexes was determined in the reaction with DPPH radical.
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Affiliation(s)
- Ivan V. Smolyaninov
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva Str., 414056 Astrakhan, Russia; (I.V.S.); (N.T.B.)
| | - Georgy K. Fukin
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 Tropinina Str., 603137 Nizhny Novgorod, Russia;
| | - Nadezhda T. Berberova
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva Str., 414056 Astrakhan, Russia; (I.V.S.); (N.T.B.)
| | - Andrey I. Poddel’sky
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 Tropinina Str., 603137 Nizhny Novgorod, Russia;
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4
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Bera R, Priyadarshini A, Ong PJ, Hong L. Strategy to Chemically Decorate Nanopores of a Carbon Membrane for Filtrating Polyphenolics from Ethanol. ACS APPLIED MATERIALS & INTERFACES 2021; 13:10524-10536. [PMID: 33605145 DOI: 10.1021/acsami.0c17977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This study invents a post-pyrolysis modification approach to render the resulting carbon membrane (CM) competent for organic solvent nanofiltration (OSN). A bitumen coating on a porous stainless-steel disk (PSD) serves as the precursor for the intended carbon membrane (CM), which is attained through pyrolysis in Ar. The bitumen coating casts dual-pore networks in the CM because of the dominant asphaltene constituent in bitumen. The subsequent chemical decoration of CM was pursued through the following protocol: dopamine (DA) was deployed in the nanopores of CM via pressurized infiltration and followed by Tris buffer passes through to trigger in situ conversion of DA to polydopamine (PDA), which was affixed over the pore walls to furnish chemical affinity (termed as CMPDA). Additionally, the catechol moiety of PDA was arranged to chelate with the Zn2+ ion, aiming to trim the -OH anchor (termed as CMPDA-Zn) to probe the effect of chelate on separation. The three membranes (CM, CMPDA, and CMPDA-Zn) were thereafter assessed by the separation of ethanol or isopropanol from phenolics [tannic acid (TA)/tetracycline (TC)]. A significantly improved OSN performance [rejection (%) ↔ permeance (L/(m2·h·bar))] of CM vs CMPDA was observed: (i) for TA feed, 13% ↔ 85 L/(m2·h·bar) vs 83% ↔ 12 L/(m2·h·bar); and (ii) for TC feed, 20% ↔ 78 L/(m2·h·bar) vs 78% ↔ 12 L/(m2·h·bar). Compared to CMPDA, CMPDA-Zn further advances the rejection performance (∼89% for TA and ∼80% for TC) over 50 h separation. They are benchmarked by the latest literature results. The performance enhancements can be attributed to the spreading of PDA or PDA-Zn sites in the dual-pore networks, so that they are able to offer H-bonding and steric blocking roles, a chemicomechanical effect, to seize solute molecules over pore walls. It is this interfacial drag effect that sustains the solute rejection.
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Affiliation(s)
- Ranadip Bera
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore
| | - Antara Priyadarshini
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore
| | - Pin Jin Ong
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore
| | - Liang Hong
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore
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5
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Smolyaninov IV, Poddel’sky AI, Smolyaninova SA, Arsenyev MV, Fukin GK, Berberova NT. Polyfunctional Sterically Hindered Catechols with Additional Phenolic Group and Their Triphenylantimony(V) Catecholates: Synthesis, Structure, and Redox Properties. Molecules 2020; 25:molecules25081770. [PMID: 32290617 PMCID: PMC7221534 DOI: 10.3390/molecules25081770] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 01/25/2023] Open
Abstract
New polyfunctional sterically hindered 3,5-di-tert-butylcatechols with an additional phenolic group in the sixth position connected by a bridging sulfur atom—(6-(CH2-S-tBu2Phenol)-3,5-DBCat)H2 (L1), (6-(S-tBu2Phenol)-3,5-DBCat)H2 (L2), and (6-(S-Phenol)-3,5-DBCat)H2 (L3) (3,5-DBCat is dianion 3,5-di-tert-butylcatecolate)—were synthesized and characterized in detail. The exchange reaction between catechols L1 and L3 with triphenylantimony(V) dibromide in the presence of triethylamine leads to the corresponding triphenylantimony(V) catecholates (6-(CH2-S-tBu2Phenol)-3,5-DBCat)SbPh3 (1) and (6-(S-Phenol)-3,5-DBCat)SbPh3 (2). The electrochemical properties of catechols L1–L3 and catecholates 1 and 2 were investigated using cyclic voltammetry. The electrochemical oxidation of L1–L3 at the first stage proceeds with the formation of the corresponding o-benzoquinones. The second process is the oxidation of the phenolic moiety. Complexes 1 and 2 significantly expand their redox capabilities, owing to the fact that they can act as the electron donors due to the catecholate metallocycle capable of sequential oxidations, and as donors of the hydrogen atoms, thus forming a stable phenoxyl radical. The molecular structures of the free ligand L1 and complex 1 in the crystal state were determined by single-crystal X-ray analysis.
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Affiliation(s)
- Ivan V. Smolyaninov
- Toxicology Research Group, Federal State Budgetary Institution of Science “Federal Research Centre The Southern Scientific Centre of the Russian Academy of The Sciences”, Tatischeva str. 16, 414056 Astrakhan, Russia;
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva str., Astrakhan 414056, Russia; (S.A.S.); (N.T.B.)
| | - Andrey I. Poddel’sky
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, Russia; (M.V.A.); (G.K.F.)
- Correspondence: ; Tel./Fax: +7-831-462-7497
| | - Susanna A. Smolyaninova
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva str., Astrakhan 414056, Russia; (S.A.S.); (N.T.B.)
| | - Maxim V. Arsenyev
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, Russia; (M.V.A.); (G.K.F.)
| | - Georgy K. Fukin
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, Russia; (M.V.A.); (G.K.F.)
| | - Nadezhda T. Berberova
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva str., Astrakhan 414056, Russia; (S.A.S.); (N.T.B.)
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6
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Gao L, Ma S, Luo J, Bao G, Wu Y, Zhou F, Liang Y. Synthesizing Functional Biomacromolecular Wet Adhesives with Typical Gel–Sol Transition and Shear-Thinning Features. ACS Biomater Sci Eng 2019; 5:4293-4301. [DOI: 10.1021/acsbiomaterials.9b00939] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Luyao Gao
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 18 Middle Tianshui Road, Lanzhou 730000, P. R. China
| | - Shuanhong Ma
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 18 Middle Tianshui Road, Lanzhou 730000, P. R. China
| | - Jiajun Luo
- Division of Surgery & Interventional Science, Institute of Orthopaedic & Musculoskeletal Science, Royal National Orthopaedic Hospital, University College London, Stanmore HA7 4LP, United Kingdom
| | - Guangjie Bao
- College of Dentistry, Northwest Minzu University, 1 New Northwest Villiage, Lanzhou 730030, P. R. China
| | - Yang Wu
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 18 Middle Tianshui Road, Lanzhou 730000, P. R. China
| | - Feng Zhou
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 18 Middle Tianshui Road, Lanzhou 730000, P. R. China
| | - Yongmin Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
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7
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The Chemistry behind Catechol-Based Adhesion. Angew Chem Int Ed Engl 2018; 58:696-714. [DOI: 10.1002/anie.201801063] [Citation(s) in RCA: 325] [Impact Index Per Article: 54.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 03/12/2018] [Indexed: 11/07/2022]
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8
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Saiz-Poseu J, Mancebo-Aracil J, Nador F, Busqué F, Ruiz-Molina D. Die chemischen Grundlagen der Adhäsion von Catechol. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801063] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- J. Saiz-Poseu
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST; Campus UAB, Bellaterra 08193 Barcelona Spanien
| | - J. Mancebo-Aracil
- Instituto de Química del Sur-INQUISUR (UNS-CONICET); Universidad Nacional del Sur; Av. Alem 1253 8000 Bahía Blanca Buenos Aires Argentinien
| | - F. Nador
- Instituto de Química del Sur-INQUISUR (UNS-CONICET); Universidad Nacional del Sur; Av. Alem 1253 8000 Bahía Blanca Buenos Aires Argentinien
| | - F. Busqué
- Dpto. de Química (Unidad Química Orgánica); UniversidadAutónoma de Barcelona, Edificio C-Facultad de Ciencias; 08193 Cerdanyola del Vallès Barcelona Spanien
| | - D. Ruiz-Molina
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST; Campus UAB, Bellaterra 08193 Barcelona Spanien
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9
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Nador F, Wnuk K, Roscini C, Solorzano R, Faraudo J, Ruiz-Molina D, Novio F. Solvent-Tuned Supramolecular Assembly of Fluorescent Catechol/Pyrene Amphiphilic Molecules. Chemistry 2018; 24:14724-14732. [DOI: 10.1002/chem.201802249] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 06/08/2018] [Indexed: 01/03/2023]
Affiliation(s)
- F. Nador
- Catalan Institute of Nanoscience and Nanotechnology (ICN2); CSIC and The Barcelona Institute of Science and Technology; Edificio ICN2, Campus UAB; Bellaterra 08193 Barcelona Spain
- Instituto de Química del Sur (INQUISUR-CONICET); Departamento de Química; Universidad Nacional del Sur; Av. Alem 1253 8000 Bahía Blanca Argentina
| | - K. Wnuk
- Catalan Institute of Nanoscience and Nanotechnology (ICN2); CSIC and The Barcelona Institute of Science and Technology; Edificio ICN2, Campus UAB; Bellaterra 08193 Barcelona Spain
| | - C. Roscini
- Catalan Institute of Nanoscience and Nanotechnology (ICN2); CSIC and The Barcelona Institute of Science and Technology; Edificio ICN2, Campus UAB; Bellaterra 08193 Barcelona Spain
| | - R. Solorzano
- Catalan Institute of Nanoscience and Nanotechnology (ICN2); CSIC and The Barcelona Institute of Science and Technology; Edificio ICN2, Campus UAB; Bellaterra 08193 Barcelona Spain
- Departament de Química; Universitat Autònoma de Barcelona (UAB), Campus UAB. Cerdanyola; del Vallès 08193 Barcelona Spain
| | - J. Faraudo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB; E-08193 Bellaterra Spain
| | - D. Ruiz-Molina
- Catalan Institute of Nanoscience and Nanotechnology (ICN2); CSIC and The Barcelona Institute of Science and Technology; Edificio ICN2, Campus UAB; Bellaterra 08193 Barcelona Spain
| | - F. Novio
- Catalan Institute of Nanoscience and Nanotechnology (ICN2); CSIC and The Barcelona Institute of Science and Technology; Edificio ICN2, Campus UAB; Bellaterra 08193 Barcelona Spain
- Departament de Química; Universitat Autònoma de Barcelona (UAB), Campus UAB. Cerdanyola; del Vallès 08193 Barcelona Spain
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10
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Ryu JH, Messersmith PB, Lee H. Polydopamine Surface Chemistry: A Decade of Discovery. ACS APPLIED MATERIALS & INTERFACES 2018; 10:7523-7540. [PMID: 29465221 PMCID: PMC6320233 DOI: 10.1021/acsami.7b19865] [Citation(s) in RCA: 841] [Impact Index Per Article: 140.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Polydopamine is one of the simplest and most versatile approaches to functionalizing material surfaces, having been inspired by the adhesive nature of catechols and amines in mussel adhesive proteins. Since its first report in 2007, a decade of studies on polydopamine molecular structure, deposition conditions, and physicochemical properties have ensued. During this time, potential uses of polydopamine coatings have expanded in many unforeseen directions, seemingly only limited by the creativity of researchers seeking simple solutions to manipulating surface chemistry. In this review, we describe the current state of the art in polydopamine coating methods, describe efforts underway to uncover and tailor the complex structure and chemical properties of polydopamine, and identify emerging trends and needs in polydopamine research, including the use of dopamine analogs, nitrogen-free polyphenolic precursors, and improvement of coating mechanical properties.
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Affiliation(s)
- Ji Hyun Ryu
- Department of Carbon Fusion Engineering, Wonkwang University, Iksan, Jeonbuk 54538, South Korea
| | - Phillip B. Messersmith
- Departments of Bioengineering and Materials Science and Engineering, University of California, Berkeley, 210 Hearst Mining Building, Berkeley, California 94720-1760, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Haeshin Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 University Road, Daejeon 34141, South Korea
- Center for Nature-inspired Technology (CNiT), KAIST Institute of NanoCentury, 291 University Road, Daejeon 34141, South Korea
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11
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Lyu Q, Song H, Yakovlev NL, Tan WS, Chai CL. In situ insights into the nanoscale deposition of 5,6-dihydroxyindole-based coatings and the implications on the underwater adhesion mechanism of polydopamine coatings. RSC Adv 2018; 8:27695-27702. [PMID: 35542737 PMCID: PMC9083950 DOI: 10.1039/c8ra04472d] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 07/27/2018] [Indexed: 11/30/2022] Open
Abstract
The biomimetic coating polydopamine (PDA) has emerged as a promising coating material for various applications. However, the mechanism of PDA deposition onto surfaces is not fully understood, and the coating components of PDA and its relation to the putative intermediate 5,6-dihydroxyindole (DHI) are still controversial. This investigation discloses the deposition mechanisms of dopamine (DA)-based coatings and DHI-based coatings onto silicon surfaces by monitoring the nanoscale deposition of both coatings in situ using high-precision ellipsometry. We posit that the rapid and instantaneous nano-deposition of PDA coatings onto silicon surface in the initial stages critically involves the oxidation of DHI and/or its related oligomers. Our studies also show that the slow conversion of DA to DHI in PDA solution and the coupling between DA and DHI-derived precursors could be crucial for subsequent PDA coating growth. These findings elucidate the critical role of DHI, acting as an ‘initiator’ and a ‘cross linker’, in the PDA coating formation. Overall, our study provides important information on the early stage nano-deposition behavior in the construction of PDA coatings and DHI-based coatings. The underwater in situ nano-deposition studies of 5,6-dihydroxyindole (DHI) have provided new insights into the controversial deposition mechanism(s) of DHI-based and polydopamine-based coatings.![]()
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Affiliation(s)
- Qinghua Lyu
- Department of Pharmacy
- National University of Singapore
- Singapore 117543
| | - Hongyan Song
- Institute of Materials Research and Engineering
- Singapore 138634
| | | | - Wui Siew Tan
- Institute of Materials Research and Engineering
- Singapore 138634
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12
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Muñoz J, Montes R, Baeza M. Trends in electrochemical impedance spectroscopy involving nanocomposite transducers: Characterization, architecture surface and bio-sensing. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.08.012] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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13
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Venkatesh V, Mishra NK, Romero-Canelón I, Vernooij RR, Shi H, Coverdale JPC, Habtemariam A, Verma S, Sadler PJ. Supramolecular Photoactivatable Anticancer Hydrogels. J Am Chem Soc 2017; 139:5656-5659. [PMID: 28414222 DOI: 10.1021/jacs.7b00186] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A photoactivatable dopamine-conjugated platinum(IV) anticancer complex (Pt-DA) has been incorporated into G-quadruplex G4K+ borate hydrogels by using borate ester linkages (Pt-G4K+B hydrogel). These were characterized by 11B NMR, attenuated total reflection Fourier transform infrared spectroscopy, circular dichroism, scanning electron microscopy and transmission electron microscopy. Microscopy investigations revealed the transformation of an extended fiber assembly into discrete flakes after incorporation of Pt-DA. Pt-DA showed photocytotoxicity against cisplatin-resistant A2780Cis human ovarian cancer cells (IC50 74 μM, blue light) with a photocytotoxic index <2, whereas Pt-G4K+B hydrogels exhibited more potent photocytotoxicity (IC50 3 μM, blue light) with a photocytotoxic index >5. Most notably, Pt-DA and Pt-G4K+B hydrogels show selective phototoxicity for cancer cells versus normal fibroblast cells (MRC5).
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Affiliation(s)
- V Venkatesh
- Department of Chemistry, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Narendra Kumar Mishra
- Department of Chemistry and Center for Nanoscience and Soft Nanotechnology, Indian Institute of Technology Kanpur , Kanpur 208016, Uttar Pradesh, India
| | - Isolda Romero-Canelón
- Department of Chemistry, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Robbin R Vernooij
- Department of Chemistry, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Huayun Shi
- Department of Chemistry, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - James P C Coverdale
- Department of Chemistry, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Abraha Habtemariam
- Department of Chemistry, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Sandeep Verma
- Department of Chemistry and Center for Nanoscience and Soft Nanotechnology, Indian Institute of Technology Kanpur , Kanpur 208016, Uttar Pradesh, India
| | - Peter J Sadler
- Department of Chemistry, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
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14
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Gebbie MA, Wei W, Schrader AM, Cristiani TR, Dobbs HA, Idso M, Chmelka BF, Waite JH, Israelachvili JN. Tuning underwater adhesion with cation-π interactions. Nat Chem 2017; 9:473-479. [PMID: 28430190 DOI: 10.1038/nchem.2720] [Citation(s) in RCA: 183] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 12/09/2016] [Indexed: 12/23/2022]
Abstract
Cation-π interactions drive the self-assembly and cohesion of many biological molecules, including the adhesion proteins of several marine organisms. Although the origin of cation-π bonds in isolated pairs has been extensively studied, the energetics of cation-π-driven self-assembly in molecular films remains uncharted. Here we use nanoscale force measurements in combination with solid-state NMR spectroscopy to show that the cohesive properties of simple aromatic- and lysine-rich peptides rival those of the strong reversible intermolecular cohesion exhibited by adhesion proteins of marine mussel. In particular, we show that peptides incorporating the amino acid phenylalanine, a functional group that is conspicuously sparing in the sequences of mussel proteins, exhibit reversible adhesion interactions significantly exceeding that of analogous mussel-mimetic peptides. More broadly, we demonstrate that interfacial confinement fundamentally alters the energetics of cation-π-mediated assembly: an insight that should prove relevant for diverse areas, which range from rationalizing biological assembly to engineering peptide-based biomaterials.
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Affiliation(s)
- Matthew A Gebbie
- Materials Department, University of California, Santa Barbara, California 93106, USA.,Materials Research Laboratory, University of California, Santa Barbara, California 93106, USA
| | - Wei Wei
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, USA
| | - Alex M Schrader
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, USA.,Department of Molecular, Cell and Developmental Biology, University of California, Santa Barbara, California 93106, USA
| | - Thomas R Cristiani
- Materials Department, University of California, Santa Barbara, California 93106, USA
| | - Howard A Dobbs
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, USA
| | - Matthew Idso
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, USA
| | - Bradley F Chmelka
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, USA
| | - J Herbert Waite
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, USA.,Department of Molecular, Cell and Developmental Biology, University of California, Santa Barbara, California 93106, USA
| | - Jacob N Israelachvili
- Materials Department, University of California, Santa Barbara, California 93106, USA.,Materials Research Laboratory, University of California, Santa Barbara, California 93106, USA.,Department of Chemical Engineering, University of California, Santa Barbara, California 93106, USA
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15
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Yamamoto S, Miyashita T, Mitsuishi M. Amphiphilic acrylamide block copolymer: RAFT block copolymerization and monolayer behaviour. RSC Adv 2017. [DOI: 10.1039/c7ra06788g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Amphiphilic acrylamide block copolymer, synthesized by RAFT polymerization, takes a stable monolayer formation with phase-separated structures at the air–water interface.
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Affiliation(s)
- Shunsuke Yamamoto
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)
- Tohoku University
- Sendai 980-8577
- Japan
| | - Tokuji Miyashita
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)
- Tohoku University
- Sendai 980-8577
- Japan
| | - Masaya Mitsuishi
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)
- Tohoku University
- Sendai 980-8577
- Japan
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16
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Klosterman L, Bettinger CJ. Calcium-Mediated Control of Polydopamine Film Oxidation and Iron Chelation. Int J Mol Sci 2016; 18:E14. [PMID: 28025498 PMCID: PMC5297649 DOI: 10.3390/ijms18010014] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 12/15/2016] [Accepted: 12/19/2016] [Indexed: 11/17/2022] Open
Abstract
The facile preparation of conformal polydopamine (PDA) films on broad classes of materials has prompted extensive research into a wide variety of potential applications for PDA. The constituent molecular species in PDA exhibit diverse chemical moieties, and therefore highly variable properties of PDA-based devices may evolve with post-processing conditions. Here we report the use of redox-inactive cations for oxidative post-processing of deposited PDA films. PDA films incubated in alkaline CaCl₂ solutions exhibit accelerated oxidative evolution in a dose-dependent manner. PDA films incubated in CaCl₂ solutions exhibit 53% of the oxidative charge transfer compared to pristine PDA films. Carboxylic acid groups generated from the oxidation process lower the isoelectric point of PDA films from pH = 4.0 ± 0.2 to pH = 3.1 ± 0.3. PDA films exposed to CaCl₂ solutions during post-processing also enhance Fe2+/Fe3+ chelation compared to pristine PDA films. These data illustrate that the molecular heterogeneity and non-equilibrium character of as-deposited PDA films afford control over the final composition by choosing post-processing conditions, but also demands forethought into how the performance of PDA-incorporated devices may change over time in salt solutions.
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Affiliation(s)
- Luke Klosterman
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA.
| | - Christopher J Bettinger
- Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA.
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA.
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17
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Lee M, Park C, Lee H, Kim H, Kim SY, In I, Kim B. Remarkably enhanced adhesion of coherently aligned catechol-terminated molecules on ultraclean ultraflat gold nanoplates. NANOTECHNOLOGY 2016; 27:475705. [PMID: 27779130 DOI: 10.1088/0957-4484/27/47/475705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report the characterization and formation of catechol-terminated molecules immobilized on gold nanoplates (Au NPLs) using N-(3,4-dihydroxyphenethyl)-2-mercaptoacetamide (Cat-EAA-SH). Single-crystalline Au NPLs, synthesized using a one-step chemical vapor transport method, have ultraclean and ultraflat surfaces that make Cat-EAA-SH molecules aligned into a well-ordered network of a large-scale. Topographic study of the catechol-terminated molecules on Au NPLs using atomic force microscopy showed more orderly orientation and higher density, leading to significantly higher adhesion as observed from local force-distance curves than those on other Au surfaces. These coherently aligned catechol-terminated molecules on the atomically smooth gold surface led to significanty more reproducible and thus more physico-chemically meaningful measurements than was possible before by employing rough gold surfaces.
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Affiliation(s)
- Miyeon Lee
- Department of Chemistry, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Korea
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18
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Yamamoto S, Uchiyama S, Miyashita T, Mitsuishi M. Multimodal underwater adsorption of oxide nanoparticles on catechol-based polymer nanosheets. NANOSCALE 2016; 8:5912-5919. [PMID: 26911546 DOI: 10.1039/c5nr08739b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Multimodal underwater adsorption behaviour of catechol units was demonstrated by examining the adsorption of different oxide nanoparticles on nanoscale-integrated polymer nanosheets. Catechol-based polymer nanosheets were fabricated using the Langmuir-Blodgett (LB) technique with random copolymers (p(DDA/DMA)s) of N-dodecylacrylamide (DDA) and dopamine methacrylamide (DMA). The p(DDA/DMA) nanosheets were immersed into water dispersions of SiO2, Al2O3, and WO3 nanoparticles (NPs) respectively. The results show that the adsorption properties can be altered by varying the NP type: SiO2 NP adsorption was observed only below pH = 6, at which the o-quinone form in p(DDA/DMA) nanosheets transforms into the catechol form or vice versa. However, their transition point for Al2O3 NP adsorption was found at approximately pH 10, at which the surface potential of Al2O3 NPs changes the charge polarity, indicating that the electrostatic interaction is predominant. For WO3 NPs, adsorption was observed when citric acid, which modifies the surface of WO3 NPs by complex formation, was used as a pH-controlling agent, but no adsorption was found for hydrochloric acid used as a pH controlling agent. FT-IR measurements proved that miniscule amounts of water molecules were trapped in p(DDA/DMA) nanosheets and that they acquired hydrogen bonding network formations, which might assist nanoparticle adsorption underwater and make the catechol units adjustable. The results indicate that the nanoscale spatial arrangements of catechol units in films are crucially important for the application of multimodal adsorption of oxide nanoparticles on catechol-based polymer materials.
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Affiliation(s)
- Shunsuke Yamamoto
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.
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19
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Toulemon D, Liu Y, Cattoën X, Leuvrey C, Bégin-Colin S, Pichon BP. Enhanced Collective Magnetic Properties in 2D Monolayers of Iron Oxide Nanoparticles Favored by Local Order and Local 1D Shape Anisotropy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:1621-1628. [PMID: 26807596 DOI: 10.1021/acs.langmuir.5b04145] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Magnetic nanoparticle arrays represent a very attractive research field because their collective properties can be efficiently modulated as a function of the structure of the assembly. Nevertheless, understanding the way dipolar interactions influence the intrinsic magnetic properties of nanoparticles still remains a great challenge. In this study, we report on the preparation of 2D assemblies of iron oxide nanoparticles as monolayers deposited onto substrates. Assemblies have been prepared by using the Langmuir-Blodgett technique and the SAM assisted assembling technique combined to CuAAC "click" reaction. These techniques afford to control the formation of well-defined monolayers of nanoparticles on large areas. The LB technique controls local ordering of nanoparticles, while adjusting the kinetics of CuAAC "click" reaction strongly affects the spatial arrangement of nanoparticles in monolayers. Fast kinetics favor disordered assemblies while slow kinetics favor the formation of chain-like structures. Such anisotropic assemblies are induced by dipolar interactions between nanoparticles as no magnetic field is applied and no solvent evaporation is performed. The collective magnetic properties of monolayers are studied as a function of average interparticle distance, local order and local shape anisotropy. We demonstrate that local control on spatial arrangement of nanoparticles in monolayers significantly strengthens dipolar interactions which enhances collective properties and results in possible super ferromagnetic order.
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Affiliation(s)
- Delphine Toulemon
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS, UMR 7504 UdS/ECPM CNRS) , 23 rue du Loess, BP 43, 67037, Strasbourg, France
| | - Yu Liu
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS, UMR 7504 UdS/ECPM CNRS) , 23 rue du Loess, BP 43, 67037, Strasbourg, France
| | - Xavier Cattoën
- Institut Néel, CNRS and Univ. Grenoble-Alpes, UPR 2940 , 25 rue des Martyrs, 38042 Grenoble, France
| | - Cédric Leuvrey
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS, UMR 7504 UdS/ECPM CNRS) , 23 rue du Loess, BP 43, 67037, Strasbourg, France
| | - Sylvie Bégin-Colin
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS, UMR 7504 UdS/ECPM CNRS) , 23 rue du Loess, BP 43, 67037, Strasbourg, France
| | - Benoit P Pichon
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS, UMR 7504 UdS/ECPM CNRS) , 23 rue du Loess, BP 43, 67037, Strasbourg, France
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20
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Guardingo M, Busqué F, Novio F, Ruiz-Molina D. Design and Synthesis of a Noninnocent Multitopic Catechol and Pyridine Mixed Ligand: Nanoscale Polymers and Valence Tautomerism. Inorg Chem 2015; 54:6776-81. [DOI: 10.1021/acs.inorgchem.5b00598] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mireia Guardingo
- ICN2-Institut Català de Nanociència i Nanotecnologia, ICN2 Building, Campus UAB, 08193-Bellaterra, Spain
- CSIC-Consejo Superior de Investigaciones Científicas, ICN2 Building, Campus UAB 08193-Bellaterra, Spain
| | - Felix Busqué
- Chemistry Department, Universitat Autònoma de Barcelona, Campus UAB, 08193-Bellaterra, Spain
| | - Fernando Novio
- ICN2-Institut Català de Nanociència i Nanotecnologia, ICN2 Building, Campus UAB, 08193-Bellaterra, Spain
- CSIC-Consejo Superior de Investigaciones Científicas, ICN2 Building, Campus UAB 08193-Bellaterra, Spain
| | - Daniel Ruiz-Molina
- ICN2-Institut Català de Nanociència i Nanotecnologia, ICN2 Building, Campus UAB, 08193-Bellaterra, Spain
- CSIC-Consejo Superior de Investigaciones Científicas, ICN2 Building, Campus UAB 08193-Bellaterra, Spain
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21
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Klosterman L, Riley JK, Bettinger CJ. Control of heterogeneous nucleation and growth kinetics of dopamine-melanin by altering substrate chemistry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:3451-3458. [PMID: 25741573 DOI: 10.1021/acs.langmuir.5b00105] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Dopamine-melanin (DM or "polydopamine") can be deposited on virtually any substrate from solution through autoxidation of dopamine. The versatility of this process has allowed surface-mediated assembly of DM for a wide variety of functional coatings. Here we report the impact of well-defined surface chemistries on the nucleation and growth of such films. DM was deposited on silicon dioxide (SiO2) and SiO2 substrates modified with self-assembled monolayers (SAMs) bearing octadecyl (C18), phenethyl, and aminopropyl functional groups. Atomic force microscopy revealed three-dimensional islands whose areal density and surface coverage are lowest on bare SiO2 substrates and highest on the neutral aromatic and aliphatic substrates. Increasing the pH of the solution from 8.2 to 10 dissociates catechol moieties in DM and inhibits adsorption on negatively charged SiO2 substrates. The growth rate of DM films on SAM-modified SiO2 is maximized at pH 9.5 and almost completely abolished at pH 10 because of increased DM solubility. The initial rates of DM adsorption were measured using quartz crystal microbalance with dissipation measurements. The initial adsorption rate is proportional to the nucleation density, which increases as the hydrophobicity of the substrate increases. Taken together, these data provide insight into the rates of heterogeneous nucleation and growth of DM on substrates with well-defined chemistries.
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Affiliation(s)
- Luke Klosterman
- †Department of Materials Science and Engineering, ‡Department of Chemical Engineering, and §Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - John K Riley
- †Department of Materials Science and Engineering, ‡Department of Chemical Engineering, and §Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Christopher John Bettinger
- †Department of Materials Science and Engineering, ‡Department of Chemical Engineering, and §Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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22
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Córdoba A, Satué M, Gómez-Florit M, Hierro-Oliva M, Petzold C, Lyngstadaas SP, González-Martín ML, Monjo M, Ramis JM. Flavonoid-modified surfaces: multifunctional bioactive biomaterials with osteopromotive, anti-inflammatory, and anti-fibrotic potential. Adv Healthc Mater 2015; 4:540-9. [PMID: 25335455 DOI: 10.1002/adhm.201400587] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 10/05/2014] [Indexed: 01/29/2023]
Abstract
Flavonoids are small polyphenolic molecules of natural origin with antioxidant, anti-inflammatory, and antibacterial properties. Here, a bioactive surface based on the covalent immobilization of flavonoids taxifolin and quercitrin on titanium substrates is presented, using (3-aminopropyl)triethoxysilane (APTES) as coupling agent. FTIR and XPS measurements confirm the grafting of the flavonoids to the surfaces. Using 2-aminoethyl diphenylborinate (DPBA, a flavonoid-specific dye), the modified surfaces are imaged by fluorescence microscopy. The bioactivity of the flavonoid-modified surfaces is evaluated in vitro with human umbilical cord derived mesenchymal stem cells (hUC-MSCs) and human gingival fibroblasts (HGFs) and compared to that of simple flavonoid coatings prepared by drop casting. Flavonoid-modified surfaces show anti-inflammatory and anti-fibrotic potential on HGF. In addition, Ti surfaces covalently functionalized with flavonoids promote the differentiation of hUC-MSCs to osteoblasts--enhancing the expression of osteogenic markers, increasing alkaline phosphatase activity and calcium deposition; while drop-casted surfaces do not. These findings could have a high impact in the development of advanced implantable medical devices like bone implants. Given the broad range of bioactivities of flavonoid compounds, these surfaces are ready to be explored for other biomedical applications, e.g., as stent surface or tumor-targeted functionalized nanoparticles for cardiovascular or cancer therapies.
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Affiliation(s)
- Alba Córdoba
- Group of Cell Therapy and Tissue Engineering; Research Institute on Health Sciences (IUNICS); University of the Balearic Islands; Ctra. Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - María Satué
- Group of Cell Therapy and Tissue Engineering; Research Institute on Health Sciences (IUNICS); University of the Balearic Islands; Ctra. Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Manuel Gómez-Florit
- Group of Cell Therapy and Tissue Engineering; Research Institute on Health Sciences (IUNICS); University of the Balearic Islands; Ctra. Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Margarita Hierro-Oliva
- Departamento de Física Aplicada; Facultad de Ciencias; Universidad de Extremadura; Badajoz Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Spain
| | | | | | - María Luisa González-Martín
- Departamento de Física Aplicada; Facultad de Ciencias; Universidad de Extremadura; Badajoz Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Spain
| | - Marta Monjo
- Group of Cell Therapy and Tissue Engineering; Research Institute on Health Sciences (IUNICS); University of the Balearic Islands; Ctra. Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Joana M. Ramis
- Group of Cell Therapy and Tissue Engineering; Research Institute on Health Sciences (IUNICS); University of the Balearic Islands; Ctra. Valldemossa km 7.5 07122 Palma de Mallorca Spain
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23
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Stöckle B, Ng DYW, Meier C, Paust T, Bischoff F, Diemant T, Behm RJ, Gottschalk KE, Ziener U, Weil T. Precise Control of Polydopamine Film Formation by Electropolymerization. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/masy.201400130] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Bettina Stöckle
- Institute of Organic Chemistry III; University of Ulm; Albert-Einstein-Allee 11 D-89069 Ulm Germany
| | - David Yuen Wah Ng
- Institute of Organic Chemistry III; University of Ulm; Albert-Einstein-Allee 11 D-89069 Ulm Germany
| | - Christoph Meier
- Institute of Organic Chemistry III; University of Ulm; Albert-Einstein-Allee 11 D-89069 Ulm Germany
| | - Tobias Paust
- Institute of Experimental Physics; University of Ulm; D-89069 Ulm Germany
| | - Fabian Bischoff
- Institute of Organic Chemistry III; University of Ulm; Albert-Einstein-Allee 11 D-89069 Ulm Germany
| | - Thomas Diemant
- Institute of Surface Chemistry and Catalysis; University of Ulm; D-89069 Ulm Germany
| | - Rolf Jürgen. Behm
- Institute of Surface Chemistry and Catalysis; University of Ulm; D-89069 Ulm Germany
| | - Kay-E. Gottschalk
- Institute of Experimental Physics; University of Ulm; D-89069 Ulm Germany
| | - Ulrich Ziener
- Institute of Organic Chemistry III; University of Ulm; Albert-Einstein-Allee 11 D-89069 Ulm Germany
| | - Tanja Weil
- Institute of Organic Chemistry III; University of Ulm; Albert-Einstein-Allee 11 D-89069 Ulm Germany
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24
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Wang J, Zhu H, Chen G, Hu Z, Weng Y, Wang X, Zhang W. Controlled Synthesis and Self-Assembly of Dopamine-Containing Copolymer for Honeycomb-Like Porous Hybrid Particles. Macromol Rapid Commun 2014; 35:1061-7. [DOI: 10.1002/marc.201400029] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Revised: 01/15/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Jinling Wang
- Center for Soft Condensed Matter Physics and Interdisciplinary Research; Soochow University; Suzhou 215006 P. R. China
- College of Chemistry; Chemical Engineering and Materials Science of Soochow University; Soochow University; Suzhou 215123 P. R. China
| | - Hui Zhu
- College of Chemistry; Chemical Engineering and Materials Science of Soochow University; Soochow University; Suzhou 215123 P. R. China
| | - Gaojian Chen
- Center for Soft Condensed Matter Physics and Interdisciplinary Research; Soochow University; Suzhou 215006 P. R. China
- College of Chemistry; Chemical Engineering and Materials Science of Soochow University; Soochow University; Suzhou 215123 P. R. China
| | - Zhijun Hu
- Center for Soft Condensed Matter Physics and Interdisciplinary Research; Soochow University; Suzhou 215006 P. R. China
- College of Chemistry; Chemical Engineering and Materials Science of Soochow University; Soochow University; Suzhou 215123 P. R. China
| | - Yuyan Weng
- Center for Soft Condensed Matter Physics and Interdisciplinary Research; Soochow University; Suzhou 215006 P. R. China
- College of Chemistry; Chemical Engineering and Materials Science of Soochow University; Soochow University; Suzhou 215123 P. R. China
| | - Xinbo Wang
- College of Chemistry; Chemical Engineering and Materials Science of Soochow University; Soochow University; Suzhou 215123 P. R. China
| | - Weidong Zhang
- Center for Soft Condensed Matter Physics and Interdisciplinary Research; Soochow University; Suzhou 215006 P. R. China
- College of Chemistry; Chemical Engineering and Materials Science of Soochow University; Soochow University; Suzhou 215123 P. R. China
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25
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Guardingo M, Esplandiu MJ, Ruiz-Molina D. Synthesis of polydopamine at the femtoliter scale and confined fabrication of Ag nanoparticles on surfaces. Chem Commun (Camb) 2014; 50:12548-51. [DOI: 10.1039/c4cc02500h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polydopamine is synthesized in confined femtolitre sized droplets and used as green nanoreactors to fabricate Ag nanoparticles on surfaces.
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Affiliation(s)
- M. Guardingo
- Centro de Investigacion en Nanociencia y Nanotecnología (CIN2-CSIC) and Institut Catala de Nanociencia i Nanotecnologia (ICN2)
- , Spain
- CSIC - Consejo Superior de Investigaciones Cientificas
- Barcelona, Spain
| | - M. J. Esplandiu
- Centro de Investigacion en Nanociencia y Nanotecnología (CIN2-CSIC) and Institut Catala de Nanociencia i Nanotecnologia (ICN2)
- , Spain
- CSIC - Consejo Superior de Investigaciones Cientificas
- Barcelona, Spain
| | - D. Ruiz-Molina
- Centro de Investigacion en Nanociencia y Nanotecnología (CIN2-CSIC) and Institut Catala de Nanociencia i Nanotecnologia (ICN2)
- , Spain
- CSIC - Consejo Superior de Investigaciones Cientificas
- Barcelona, Spain
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